Join Date: Dec 2010
Location: Above ground, Walnut Creek, Ca
Bikes: 7⃥ 9 road bikes
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i doubt if it's the brake pads. some rims have machined braking surfaces (TB-14's do) that are known for shedding aluminum shards for the first hundred miles or so. the shards imbed themselves in whatever pad is on there and make a racket when braking. i just clean out the pads with a sharp tool when i get home and forget about it. IME, it soon stops.
and yes, the scratch will wear away eventually, in fact the entire braking surface will wear away eventually and you'll have to buy a new rim.
if you want to you might think about taking some 220 wet/dry (i use it wet) sandpaper to the braking surface to clean it up a bit, it might help, cosmetically speaking. i suppose it could even reduce whatever shedding the rim has left to do.
Last edited by hueyhoolihan; 07-16-14 at 11:56 PM.